Question

what is 0.017e^0.80 ; round answer to two significant digits.

Answer 1

I'm assuming you don't have a calculator right?

Answer 2

correct

Answer 3

then wolfram alpha is the next best thing

http://www.wolframalpha.com/input/?i=0.017e^0.80

the answer on that page is 0.0378342

Answer 4

you then round to get 0.04

Answer 5

Also, google is another calculator (you just type in the expression in the search bar and you it enter)

http://www.google.com/search?q=0.017e%5E0.80&oq=0.017e%5E0.80&sugexp=chrome,mod=0&sourceid=chrome&ie=UTF-8

There are a ton of other calculators online. These calculators can be used online without having to download them (eg: wolfram alpha and google) or you can download them if you want them on your computer (graphcalc).

Answer 6

ok, thanks. i have another question, just need some input

Answer 7

sure

Answer 8

actually its tough to explain without showing the entire problem

Answer 9

ok then post it

Answer 10

\[p(t)=0.17e ^{0.10t} million \]

Answer 11

where t is time in years (t = 0 represents 1994). What was the average price of a two-bedroom apartment in this uptown area in 2002, and how fast was it increasing? (Round your answers to two significant digits.)

Answer 12

i already found the answer for P(8) = 0.38 million, i just need to find the P'(8), which i asked in the last question

Answer 13

ok, so what is your question then

Answer 14

i entered 37,000 ; 38,000. for my P'(8) answer but it was incorrect

Answer 15

P '(t) = 0.017e ^(0.10*t)

P '(8) = 0.017e ^(0.10*8)

P '(8) = ???

Answer 16

hmm i see what you did, let me think for a sec

Answer 17

oh it should be 0.04 (round to 2 sig figs)

Answer 18

so it's $40,000

Answer 19

or 40000

Answer 20

sorry i just plugged that into my assignment and it said it was incorect

Answer 21

maybe it can be 37,800?

Answer 22

could it be that the answer is in millions of dollars?

if so, then you would just write 0.04

Answer 23

an example in my book had a similar problem, instead it was 0.014 and after calculating it was 0.0311575.... 31,000 as the final answer. so idk what the deal is with this one

Answer 24

0.04 million dollars = 40,000 dollars

Answer 25

you might be right because my other answer is in decimal form as well

Answer 26

yeah not sure what form they want

Answer 27

darn, still not right.

Answer 28

can i see a screenshot of the entire problem

Answer 29

ive already answered, 0.04 ; 38000 ; 37000 ; and 40000. all incorrect

Answer 30

ok, so the answer is definitely either 0.04, 0.037, or 0.038

it's probably 0.038

Answer 31

the answer is one of these choices because it says "million per year"

Answer 32

p'(8)? Hmm I'm coming up with 0.000012692... I better check my work though :O

Answer 33

Oh i did the exponential wrong :D ignore me lol

Answer 34

ok haha, and yea i have only one more attempt at this problem. so im leaning towards 0.038

Answer 35

0.037834196 is what I'm coming up with :O Hmm

Answer 36

i know thats the right calculations but im having trouble formatting it into the answer they want.

Answer 37

It should b .038, or .04, I forget how significant figures work...

Answer 38

it can't be something like 37,000 because the answer is in millions (37,000 million = 37,000,000,000 = 37 billion, which is way too high)

Answer 39

@zepdrix i already tried 0.04 and it was incorrect. so 0.038 sounds about right?

Answer 40

Are you limited to a certain number of guesses? Is that why you're trying to be careful?

Answer 41

yes i have a limited amount to get the final answer right and it happens that im on my last attempt.

Answer 42

oh boy :(

Answer 43

Hmmmmmmmmmm

Answer 44

See example 3 on pg 344! XD any help looking there? :D

Answer 45

lol already did, no help at all.

Answer 46

So you've already used your "phone a friend"?
Stuck with the "Ask the audience" huh? Hmm that's rough...

Answer 47

When you put p(8) into your calculator, it spits out
p(8)=0.378341958
And the correct answer was .38

Since the problem was given to us in millions, we didn't have to do any silly conversions or something.

When i put p'(8) into my calculator, it gives me
p'(8)=0.037834196

So using the same format as before, .038 should be correct! But whatev! I dunno! :O

Answer 48

hell yea! got it right. thanks @zepdrix and @jim_thompson5910

Answer 49

so 0.038 worked?

Answer 50

yay team! \c:/

Answer 51

yea it did. thanks a lot for the help jim, much appreciated. and Zep, as always lol

Answer 52

yw